Last updated on NOVEMBER 02, 2016
Applies to:Exalytics In-Memory Machine X3-4 - Version All Versions and later
Information in this document applies to any platform.
Oracle Exalytics OVM Server version 184.108.40.206.0 (Patchset 5) with two OVM guest instances became unexpectedly non-responsive. Users could not login to applications and it was not possible to login via putty or SSH at the OS level.
Messages displayed on console show:
Bug: soft lockup - CPU#3 stuck for 22s! [mcelog: 2128]
Modules linked in: xen_pciback tun xen_blkbak xen_netback xen_gntdev xen_evtchm
lock sunrpc mlx4_en(U) bridge stp 11c bonding be2iscsi isci_boot_sysfs _iscsi_....
Similar behavior and soft lockup errors may also occur on Exalytics OVM servers with lower level Exalytics Patchsets (PS2, PS3, etc.).
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